PS 17-26 THE CLINICAL DIFFERENCE BETWEEN TWO PATTERNS OF BLOOD PRESSURE ELEVATION DURING EXERCISE IN NORMAL GROUP

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Abstract

Objective:

Blood pressure (BP) elevation during exercise is physiological and natural appearance. It is the result of sympathetic response of systemic structure. However, there are two characteristic responses for this phenomenon, early abrupt or gradual elevation of BP during exercise. Here we tried to investigate the clinical characteristics of these two patterns.

Design and method:

A total of 114 patients without hypertension was enrolled (mean age, 59.3 ± 11.7; male, 44.0%; mean blood pressure, 123.9 ± 12.6 mmHg in systolic and 82.6 ± 7.6 mmHg in diastolic BP). Forty two patients (36.8%) have diabetes. Treadmill test was performed for evaluation of chest pain. Patients with severe coronary artery disease, positive treadmill test result, left ventricular dysfunction or renal failure were excluded. Abrupt elevation of BP was defined as peak BP stage of I or II in patients over 8 METs of exercise.

Results:

Baseline BP, Peak systolic BP, heart rate, sex, diabetes, lipid were not significantly different between two groups. However, BMI (24.6 ± 4.7 vs 21.6 ± 2.5 Kg/m2, in abrupt and gradual group, p = 0.022) and age (63.2 ± 13.0 vs 55.1 ± 10.8, in abrupt and gradual group, p = 0.036) were significantly different between two groups.

Conclusions:

Abruptly accelerated BP during exercise may be related with poor prognostic index rather than gradually elevated group in non-hypertensives.

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